package com.huluobo.a2302mdmdemo.demo

import androidx.compose.foundation.ExperimentalFoundationApi
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.fillMaxHeight
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.offset
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.pager.HorizontalPager
import androidx.compose.foundation.pager.VerticalPager
import androidx.compose.foundation.pager.rememberPagerState
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.material3.Button
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.layout.ContentScale
import androidx.compose.ui.unit.dp
import coil.compose.AsyncImage
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Job
import kotlinx.coroutines.launch

/**
 *  Created by LC on 2025/7/21.
 */

@OptIn(ExperimentalFoundationApi::class)
@Composable
fun MyBanner() {
    val list = listOf(
        "https://img2.baidu.com/it/u=1134184213,2435039814&fm=253&fmt=auto?w=1062&h=800",
        "https://img1.baidu.com/it/u=2693733305,4035903587&fm=253&app=138&size=w931&n=0&f=JPEG&fmt=auto?sec=1729184400&t=92694ac7a4bb0b4a405af0e28c18cd82",
        "https://img0.baidu.com/it/u=540669065,2162680038&fm=253&app=120&size=w931&n=0&f=JPEG&fmt=auto?sec=1729184400&t=3adc1ec41d0f0d8ac469eb88eb19c531",
        "https://img2.baidu.com/it/u=553712968,3437602612&fm=253&app=120&size=w931&n=0&f=JPEG&fmt=auto?sec=1729184400&t=280fc51f8b1c0619aedbe9c1d5ce9895",
        "https://img0.baidu.com/it/u=1677400077,1401427640&fm=253&fmt=auto?w=679&h=1216"
    )

    //保存轮播图页面的下标
    val pageState = rememberPagerState {
        5
    }

    var index = remember {
        mutableStateOf(0)
    }

    Column() {
        //如果是引导页,判断pager的状态是否是最后一页,加上按钮即可
//        HorizontalPager(state = pageState, modifier = Modifier.fillMaxHeight()) { index ->
//            Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.BottomCenter) {
//                AsyncImage(
//                    model = list[index],
//                    contentDescription = "",
//                    modifier = Modifier.fillMaxHeight(),
//                    contentScale = ContentScale.Crop
//                )
//                if (pageState.currentPage ==  4) {
//                    Button(onClick = {}, modifier = Modifier.padding(bottom = 50.dp)) {
//                        Text(text = "跳过")
//                    }
//                }
//            }
//        }
        HorizontalPager(state = pageState, modifier = Modifier.height(250.dp)) { index ->
            AsyncImage(
                model = list[index],
                contentDescription = "",
                modifier = Modifier.height(250.dp),
                contentScale = ContentScale.Crop
            )
        }

        Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth().offset(y = (-20).dp)) {
            //repeat 重复,相当于我重复写了5次该控件
            repeat(pageState.pageCount) { index ->
                val color = if (pageState.currentPage == index) Color.DarkGray else Color.LightGray
                Box(
                    modifier = Modifier
                        .size(16.dp)
                        .padding(3.dp)
                        .clip(CircleShape)
                        .background(color = color)
                )
            }
//            Box(
//                modifier = Modifier
//                    .size(16.dp)
//                    .padding(3.dp)
//                    .clip(CircleShape)
//                    .background(color = if (pageState.currentPage == 1) Color.DarkGray else Color.LightGray)
//            )
//            Box(
//                modifier = Modifier
//                    .size(16.dp)
//                    .padding(3.dp)
//                    .clip(CircleShape)
//                    .background(color = if (pageState.currentPage == 2) Color.DarkGray else Color.LightGray)
//            )
//            Box(
//                modifier = Modifier
//                    .size(16.dp)
//                    .padding(3.dp)
//                    .clip(CircleShape)
//                    .background(color = if (pageState.currentPage == 3) Color.DarkGray else Color.LightGray)
//            )
//            Box(
//                modifier = Modifier
//                    .size(16.dp)
//                    .padding(3.dp)
//                    .clip(CircleShape)
//                    .background(color = if (pageState.currentPage == 4) Color.DarkGray else Color.LightGray)
//            )
        }
    }
}